31314427684 has 6 divisors (see below), whose sum is σ = 54800248454. Its totient is φ = 15657213840.

The previous prime is 31314427633. The next prime is 31314427691. The reversal of 31314427684 is 48672441313.

It can be written as a sum of positive squares in only one way, i.e., 27982598400 + 3331829284 = 167280^2 + 57722^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31314427684.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3914303457 + ... + 3914303464.

Almost surely, 2^31314427684 is an apocalyptic number.

It is an amenable number.

31314427684 is a deficient number, since it is larger than the sum of its proper divisors (23485820770).

31314427684 is a wasteful number, since it uses less digits than its factorization.

31314427684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7828606925 (or 7828606923 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

Adding to 31314427684 its reverse (48672441313), we get a palindrome (79986868997).

The spelling of 31314427684 in words is "thirty-one billion, three hundred fourteen million, four hundred twenty-seven thousand, six hundred eighty-four".